Composition for titanium-tungsten metal alloy

ABSTRACT

A composition for titanium-tungsten metal alloy. A composition for titanium-tungsten metal allow may comprise: A composition for titanium-tungsten metal alloy may comprise: a titanium component in an amount of approximately 51.0 percent by weight based on a total weight of the composition; a tungsten component in an amount of approximately 14.0 percent by weight; a nickel component in an amount of approximately 15.0 percent by weight; a chromium component in an amount of approximately 1.0 percent by weight; a molybdenum component in an amount of approximately 10.0 percent by weight; a copper component in an amount of approximately 2.0 percent by weight; and a carbon component is an amount of approximately 7.0 percent by weight.

FIELD OF INVENTION

This present disclosure generally relates to metal alloy compositions. More particularly, the present disclosure generally relates to a titanium-tungsten metallic composition, comprising various percentages by weight of titanium, tungsten, nickel, chromium, molybdenum, copper, and carbon.

BACKGROUND

Since the dawn of time, humans have shaped metal into jewelry. Recently, while exploring new metals to create jewelry, many jewelers may have discovered that tungsten carbide could potentially be a valuable jewelry material. Tungsten carbide is usually used to make jewelry that is harder and more scratch-resistant than that of traditional metal jewelry, such as gold, silver, and platinum. Tungsten is also generally a much more affordable metal than its precious metal counterparts, permitting jewelers to sell their designs at much lower prices.

Despite the advantages of tungsten carbide, tungsten carbide jewelry also has its drawbacks. For example, U.S. Pat. Nos. 6,928,734; 6,062,045; 6,553,667; 6,990,736; 6,993,842; 7,032,314; 7,076,972; 7,761,996; 8,061,033; and 8,584,360, issued to West (“West”), disclose at least one or more compositions and/or methods used to create jewelry using tungsten carbide. These methods for manufacturing tungsten carbide may lead to fibrosis due to accidental inhalation of the carbide dust. Additionally, the stiffness of the material tungsten carbide itself generally does not allow for engraving or resizing of the jewelry.

Due to the disadvantages of tungsten carbide, some jewelers have looked to use other materials in jewelry such as titanium. With titanium, the jeweler is afforded the benefits of tungsten, such as its scratch-resistant and hard material properties. Additionally, titanium has the added benefit of a lighter metal that could be finished in multiple colors and is more malleable, thereby allowing one to engrave and resize titanium jewelry. Furthermore, titanium jewelry manufacturing also generally does not have the added risk of fibrosis, as carbide is not needed. Unfortunately, however, titanium is much more expensive than tungsten.

Therefore, what is needed is a metal alloy composition and method of making tungsten and titanium metal allow composition. Because tungsten is typically combined with carbon in one of two forms (i.e., tungsten carbide and tungsten semi-carbide), the new composition preferably utilizes tungsten semi-carbide rather than tungsten carbide. Preferably, the new metal composition will utilize tungsten and titanium in order to take advantage of the benefits of both metals such as lower material costs, scratch-resistance properties, favorable color, and malleability.

SUMMARY

To minimize the limitations in the prior art, and to minimize other limitations that will become apparent upon reading and understanding the present specification, the following discloses a new and improved metal alloy composition, comprising titanium and tungsten.

One embodiment may be a metallic alloy composition, comprising: a titanium component; a tungsten component; a nickel component; a chromium component; a molybdenum component; a copper component; and a carbon component. The titanium component may be an amount of approximately 45.0 to 55.0 percent by weight based on a total weight of the composition. The tungsten component may be an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of the composition. The nickel component may be an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of the composition. The chromium component may be an amount of approximately 0.5 to 5.0 percent by weight based on a total weight of the composition. The molybdenum component may be an amount of approximately 5.0 to 15.0 percent by weight based on a total weight of the composition. The copper component may be an amount of approximately 0.1 to 3.0 percent by weight based on a total weight of the composition. The carbon component may be an amount of approximately 5.0 to 10.0 percent by weight based on a total weight of the composition. The metallic alloy may be scratch-resistant. The metallic alloy may be rust resistant. The metallic alloy may be tarnish-resistant.

Another embodiment may be a process for producing a metal alloy composition, comprising the steps of: providing a mold; providing one or more raw materials; melting the one or more raw materials into the mold to create a cast; breaking the cast; and smoothing and polishing the cast to create the metal allow composition. The mold may be constructed of rubber. The cast may be formed by injecting a wax into the mold. The raw materials may comprise: a titanium component; a tungsten component; a nickel component; a chromium component; a molybdenum component; a copper component; and a carbon component. The titanium component may be approximately 51.0 percent by weight based on a total weight of the composition. The tungsten component may be an amount of approximately 14.0 percent by weight based on a total weight of the composition. The nickel component may be in an amount of approximately 15.0 percent by weight based on a total weight of the composition. The chromium component may be in an amount of approximately from 1.0 percent by weight based on a total weight of the composition. The molybdenum component may be in an amount of approximately 10.0 percent by weight based on a total weight of the composition. The copper component may be in an amount of approximately from 2.0 percent by weight based on a total weight of the composition. The carbon component may be in an amount of approximately from 7.0 percent by weight based on a total weight of the composition. The raw materials may be melted at a temperature of at least approximately 1,400-1,500° C. and then poured into the cast. The melted raw materials may be allowed to cool before the cast is broken and unfinished metal alloy is removed.

Another embodiment may be a metallic alloy composition, comprising: a titanium component in an amount of approximately 45.0 to 55.0 percent by weight based on a total weight of the composition; a tungsten component in an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of the composition; a nickel component in an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of the composition; a chromium component in an amount of approximately 0.5 to 5.0 percent by weight based on a total weight of the composition; a molybdenum component in an amount of approximately 0.5 to 15.0 percent by weight based on a total weight of the composition; a copper component in an amount of approximately 0.1 to 3.0 percent by weight based on a total weight of the composition; and a carbon component is an amount of approximately 5.0 to 10.0 percent by weight based on a total weight of the composition. The titanium component may be approximately 51.0 percent by weight based on a total weight of the composition; The tungsten component may be in an amount of approximately 14.0 percent by weight based on a total weight of the composition; wherein the nickel component may be in an amount of approximately 15.0 percent by weight based on a total weight of the composition; wherein the chromium component may be in an amount of approximately 1.0 percent by weight based on a total weight of the composition; wherein the molybdenum component may be in an amount of approximately 10.0 percent by weight based on a total weight of the composition; wherein the copper component may be in an amount of approximately 2.0 percent by weight based on a total weight of the composition; and wherein the carbon component may be in an amount of approximately 7.0 percent by weight based on a total weight of the composition.

The present disclosure generally avoids the problems of prior metals to make jewelry because the costs of tungsten and titanium are lower than other precious metals. By combining tungsten and titanium, one is able to take advantages of tungsten and titanium. Through the use of tungsten, one is afforded the qualities of low cost, durability, and scratch-resistance. Titanium, on the other hand, has its own advantages of being malleable, a light-weight material, hypo-allergenic, rust resistant, and tarnish-resistant. Although tungsten and titanium have sought after characteristics, combining solely the two elements is not feasible, as it leads to an unstable compound, causing one to include additional elements and metals. Additionally, an alloy of solely tungsten, titanium, and stabilizing elements will lead to a metal with a color similar, if not the same, of existing jewelry. By adding additional metallic components, such as chromium, molybdenum, nickel, and copper, one is able to change the hue of the metal.

One embodiment may be a metal alloy composition, comprising: a titanium component; a tungsten component; a nickel component; a chromium component; a molybdenum component; a copper component; and a carbon component. The titanium component may be an amount from approximately 45.0 to 55.0 percent by weight based on a total weight of the composition; the tungsten component may be an amount from approximately 10.0 to 20.0 percent by weight based on a total weight of the composition; the nickel component may be an amount from approximately 10.0 to 20.0 percent by weight based on a total weight of the composition; the chromium component may be an amount from approximately 0.5 to 5.0 percent by weight based on a total weight of the composition; the molybdenum component may be an amount from approximately 5.0 to 15.0 percent by weight based on a total weight of the composition; the copper component may be an amount from 0.1 to 3.0 percent by weight based on a total weight of the composition; and the carbon component may be an amount from approximately 5.0 to 10.0 percent by weight based on a total weight of the composition. The metal alloy may further comprise the qualities of scratch-resistance, rust resistance, and corrosion resistance.

Another embodiment may be a process for producing a metal alloy composition, the steps comprising: a setup step; a production step; and a finishing step. The setup step may comprise: forming a mold and a cast; wherein the mold may be made of rubber and the cast may be formed by injecting wax into the mold. The production step may comprise: a melting of a raw materials and a breaking of the cast; wherein the raw materials may be melted at a temperature of at least 1,400-1,500° C., poured into the cast, and allowed to cool before the cast is broken and an unfinished metal alloy is removed. The finishing step may comprise: a smoothing and polishing of the metallic alloy; wherein the unfinished metal alloy may be smoothed and then polished.

The present disclosure provides an attractive metal alloy composition that may be used to create low cost jewelry with properties that are desirable to consumers. The metal alloy composition is preferably made up of metals that have a lower cost than precious metals and that are more attractive than non-precious metals, such as steel, which are currently used within the majority of jewelry made. Precious metals may include, without limitation, gold, silver, and platinum, all of which are relatively expensive metals.

The materials costs of tungsten and titanium are lower than the costs of precious metals. As such, jewelry made using tungsten and titanium can be made at a lower cost. The composition of the present disclosure may preferably include tungsten, which is relatively inexpensive, durable, and scratch-resistance, and titanium, which is malleable, light-weight, hypo-allergenic, rust resistant, and corrosion resistant.

Although tungsten and titanium may have sought-after characteristics, combining solely the two elements is generally not feasible, as it leads to an unstable compound. Accordingly, the composition of the present disclosure may preferably include the inclusion of additional metals, such as chromium, molybdenum, nickel, and copper. The addition of other metals may also be used to change the hue and color of the resulting jewelry.

The metal composition may be created via a casting method. First, a mold of the desired design may be formed, typically from rubber. Next, a wax cast of the design may be created from the rubber mold. The raw metals and elements may then be combined and melted together to create the cast. The melted composition of the present disclosure may then be poured into the cast. Once the composition cools and hardens, the cast may be broken and the hardened metallic alloy, now in the shape of the desired design, may be removed from the cast. The metallic alloy's surfaces may then smoothed with sandpaper and polished.

It is an object to provide a new metal alloy composition using tungsten semi-carbide rather than tungsten carbide.

It is an object to overcome the limitations of the prior art.

Additional embodiments of the invention will be understood from the detailed description of the illustrative embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The figures are of illustrative embodiments. They do not illustrate all embodiments. Other embodiments may be used in addition or instead. Details which may be apparent or unnecessary may be omitted to save space or for more effective illustration. Some embodiments may be practiced with additional components or steps and/or without all of the components or steps which are illustrated.

FIG. 1 is an illustration of one embodiment of tungsten carbide and shows the structure of tungsten carbide.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

In the following detailed description numerous specific details are set forth in order to provide a thorough understanding of various aspects of one or more embodiments. However, one or more embodiments may be practiced without some or all of these specific details. In other instances, well-known methods, procedures, and/or components have not been described in detail so as not to unnecessarily obscure aspects of embodiments.

While multiple embodiments are disclosed, still other embodiments of the present disclosure will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments. As will be realized, the embodiments are capable of modifications in various obvious aspects, all without departing from the spirit and scope. Also, the reference or non-reference to a particular embodiment shall not be interpreted to limit the scope of protection.

DEFINITIONS

In the following description, certain terminology is used to describe certain features of one or more embodiments. For example, as used herein, the terms “metallic alloy composition”, “metal alloy composition”, “metal alloy”, or “composition”, refers to any combination of materials which may comprise one or more embodiments of present disclosure.

As used herein, the term “alloy” generally refers to a mixture, composition, or combination of metals.

As used herein, the terms “malleable” or “malleability” generally refer to the capability to stretch, bend, design, or change a metal.

As used herein, the terms “tarnish” or “corrosion” generally refer to the gradual degradation of a metal.

Table 1 is a table of one embodiment of the metallic alloy composition. As shown in Table 1, one embodiment of the metallic alloy composition may be comprised of one or more raw material metals such as tungsten, carbon, titanium, nickel, chromium, molybdenum, and copper, which are melted together to form the composition.

The raw material metals may be combined to create a metal alloy that is cost effective, durable, and of a variety of colors, many of which may not currently be found in jewelry. Table 1 also lists the preferred weight (Wt) percentage (%) range of each material and the primary purpose of the material.

TABLE 1 Preferred Wt Ingredient % Range Purpose Tungsten 10.0-20.0 Increases durability and scratch resistance; decreases cost; alters color of alloy; hypoallergenic Carbon  5.0-10.0 Increase strength; scratch resistance Titanium 45.0-55.0 Increases durability; hypoallergenic; corrosion resistant; decreases weight; alters color of alloy Nickel 10.0-20.0 Binder; corrosion resistance Chromium  0.5-5.0 Corrosion resistance Molybdenum  5.0-15.0 Increases strength; scratch resistance;   corrosion resistance Copper  0.1-3.0 Increases malleability; alters color of alloy

Tungsten is generally a very hard, brittle metal. The hardness of tungsten may allow the metallic alloy composition to be scratch resistant, thereby increasing its durability. Because tungsten is a very hard metal, other materials may generally be needed in the metallic alloy composition in order to increase the metallic alloy composition's malleability. Tungsten is also a very heavy metal, which may benefit from combining it with other metals that are lighter. Jewelry that is too heavy is undesirable. Another benefit to using tungsten in jewelry is the relative affordability of tungsten. Tungsten is much less expensive than gold or silver.

In an embodiment, the tungsten component of the metal alloy composition may be in an amount up to 20.0 percent by weight, and more preferably between approximately 10.0 to 20.0 percent by weight based on a total weight of the composition. In a preferred embodiment, the metal alloy composition may contain tungsten at approximately 14.0 percent by weight based on the total weight percent of the composition.

The metal alloy composition may further comprise carbon. Currently, tungsten may be combined with carbon in two forms: (1) tungsten carbide; and (2) tungsten semi carbide. Tungsten carbide is generally a compound with equal amounts of tungsten and carbon. Tungsten semi carbide is generally a compound in which the amount of tungsten is double that of carbon. Tungsten carbide tends to be much stiffer (brittle), stronger, heavier, and more scratch-resistant than the semi carbide form. Rather than using tungsten carbide, the present composition preferably utilizes tungsten semi carbide, thereby using twice the amount of tungsten to carbon, in order to reduce the weight and brittleness.

FIG. 2 is an illustration of one embodiment of tungsten semi carbide and shows the structure of tungsten semi carbide. As stated above, carbon may be used in this composition in order to increase the strength and scratch resistance properties of tungsten. The preferred form of carbon used in this composition may have a chemical formula W2C with the structure shown in FIG. 2. One embodiment of the present composition may contain an amount of carbon of up to approximately 10.0 percent by weight, and more preferably between approximately 5.0 to 10.0 percent by weight. In a preferred embodiment, the metal alloy composition may contain a carbon composition of approximately 7.0 percent by weight based on the total weight percent of the composition.

Titanium may be added to the composition to increase the composition's durability, scratch resistance, and rust resistance. Titanium has a high tensile strength and is malleable, thereby allowing the compound to be manipulated more easily while allowing more intricate designs to be completed. Titanium is significantly lighter in weight than tungsten and may also be used because of its biocompatibility, which makes it hypoallergenic. Titanium generally has a silvery-white appearance and hue, which is similar to more expensive, silver jewelry, which is desirable. In an embodiment, the titanium component of the present composition may be in an amount up to 55.0 percent by weight, and more preferably between 45.0 to 55.0 percent by weight. In a preferred embodiment, the titanium component may contain about approximately 51.0 percent by weight based on the total weight percent of the composition.

The present composition may be further comprised of nickel, which has slow oxidation properties, which generally makes nickel an ideal metal for rust resistance. Additionally, nickel is may be an excellent binder of tungsten carbide or tungsten semi carbide. Nickel also may add corrosion-resistance properties to tungsten carbide or tungsten semi carbide. In an embodiment, nickel may be included in the present composition in an amount up to approximately 20.0 percent by weight, and more preferably between approximately 10.0 to 20.0 percent by weight. In a preferred embodiment, the composition may be comprised of nickel at approximately 15.0 percent by weight based on the total weight percent of the composition.

The present composition may be comprised of chromium, which has strong corrosion resistant properties and tends to form stable carbides at grain boundaries. In an embodiment, the chromium component of the metal alloy composition may be in an amount of up to approximately 5.0 percent by weight, and more preferably between 0.5 to 5.0 percent by weight. In a preferred embodiment, chromium may be approximately 1.0 percent by weight based on the total weight percent of the composition.

The present composition may be further comprised of molybdenum. Molybdenum generally helps increase the strength of the composition and helps prevent corrosion due to its corrosion resistant properties. Molybdenum may also be used to decrease the density of the composition, especially when tungsten is present, as tungsten is very dense. In an embodiment, the molybdenum component may be in an amount up to approximately 15.0 percent by weight, and more preferably between approximately 5.0 to 15.0 percent by weight. In a preferred embodiment, the molybdenum component may be approximately 10.0 percent by weight based on the total weight percent of the composition.

The present composition may be further comprised of copper, which adds color and malleability. In an embodiment, the copper component may be in an amount of up to approximately 3.0 percent by weight, and more preferably between approximately 0.1 to 3.0 percent by weight. In a preferred embodiment, the copper component may contain about approximately 2.0 percent by weight based on the total weight percent of the composition.

Table 2 is a table of a preferred embodiment of the metallic alloy composition. As shown in Table 2, a preferred embodiment of the metallic alloy composition may comprise: tungsten, carbon, titanium, nickel, chromium, molybdenum, and copper. The titanium component may be approximately 51.0 percent by weight based on a total weight of said composition. The tungsten component may be in an amount of approximately 14.0 percent by weight based on a total weight of said composition. The nickel component may be in an amount of approximately 15.0 percent by weight based on a total weight of said composition. The chromium component may be in an amount of approximately 1.0 percent by weight based on a total weight of said composition. The molybdenum component may be in an amount of approximately 10.0 percent by weight based on a total weight of said composition. The copper component may be in an amount of approximately 2.0 percent by weight based on a total weight of said composition. The carbon component may be in an amount of approximately 7.0 percent by weight based on a total weight of said composition.

TABLE 2 Composition Component Preferred Wt % Range Tungsten 14.0% Carbon  7.0% Titanium 51.0% Nickel 15.0% Chromium  1.0% Molybdenum 10.0% Copper  2.0%

Unless otherwise noted, all parts, percentages, and ratios reported in the table above are generally used on a weight basis, and all materials used in the table were obtained, or are available, from chemical suppliers, or may be synthesized by conventional techniques.

The composition of the present disclosure may be made using a casting process, comprising the steps of: a setup step; a production step; and a finishing step.

The setup step may comprise: formation of a mold and the creation of a cast. The mold may be formed by fashioning a piece of rubber into the desired shape. The cast may then be created by injecting wax into the rubber mold. Once the wax hardens, the cast can be removed from the rubber mold.

The production step may comprise: a melting of raw materials together, pouring the composition into the cast, and breaking of the cast. The raw materials, which may comprise the following: tungsten; carbon; titanium; nickel; chromium; molybdenum; and copper, may be melted together at a temperature of 1,400-1,500° C. to form a liquid composition, which may then be poured into the cast. Once the liquid composition cools and hardens in the cast, the cast may be broken and the hardened composition removed.

The finishing step may comprise: a smoothing and polishing of the hardened composition. Once the hardened composition is removed from the cast, the composition may be smoothed of any rough edges via a sanding tool. Once smoothed, the hardened composition may be polished.

While the foregoing written description enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. This disclosure should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the disclosure as claimed.

The foregoing description of the preferred embodiment has been presented for the purposes of illustration and description. While multiple embodiments are disclosed, still other embodiments will become apparent to those skilled in the art from the above detailed description, which shows and describes illustrative embodiments. As will be realized, the embodiments are capable of modifications in various obvious aspects, all without departing from the spirit and scope. Accordingly, the detailed description is to be regarded as illustrative in nature and not restrictive. Also, although not explicitly recited, one or more embodiments may be practiced in combination or conjunction with one another. Furthermore, the reference or non-reference to a particular embodiment shall not be interpreted to limit the scope. It is intended that the scope not be limited by this detailed description, but by the claims and the equivalents to the claims that are appended hereto.

Except as stated immediately above, nothing which has been stated or illustrated is intended or should be interpreted to cause a dedication of any component, step, feature, object, benefit, advantage, or equivalent to the public, regardless of whether it is or is not recited in the claims. 

What is claimed is:
 1. A metallic alloy composition, comprising: titanium; tungsten; nickel; chromium; molybdenum; copper; and carbon.
 2. The metal alloy composition of claim 1, wherein said titanium is approximately 45.0 to 55.0 percent by weight based on a total weight of said composition.
 3. The metal alloy composition of claim 1, wherein said tungsten is an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition.
 4. The metal alloy composition of claim 1, wherein said nickel is an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition.
 5. The metal alloy composition of claim 1, wherein said chromium is an amount of approximately 0.5 to 5.0 percent by weight based on a total weight of said composition.
 6. The metal alloy composition of claim 1, wherein said molybdenum is an amount of approximately 5.0 to 15.0 percent by weight based on a total weight of said composition.
 7. The metal alloy composition of claim 1, wherein said copper is an amount of approximately 0.1 to 3.0 percent by weight based on a total weight of said composition.
 8. The metal alloy composition of claim 1, wherein said carbon is an amount of approximately 5.0 to 10.0 percent by weight based on a total weight of said composition.
 9. The metal alloy composition of claim 1, wherein said metallic alloy is scratch-resistant.
 10. The metal alloy composition of claim 1, wherein said metallic alloy is corrosion resistant.
 11. The metal alloy composition of claim 1, wherein said metallic alloy is rust resistant.
 12. The metal alloy composition of claim 2, wherein said tungsten is an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition.
 13. The metal alloy composition of claim 12, wherein said nickel is an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition.
 14. The metal alloy composition of claim 13, wherein said chromium is an amount of approximately 0.5 to 5.0 percent by weight based on a total weight of said composition.
 15. The metal alloy composition of claim 14, wherein said molybdenum is an amount of approximately 5.0 to 15.0 percent by weight based on a total weight of said composition.
 16. The metal alloy composition of claim 15, wherein said copper is an amount of approximately 0.1 to 3.0 percent by weight based on a total weight of said composition.
 17. The metal alloy composition of claim 16, wherein said carbon is an amount of approximately 5.0 to 10.0 percent by weight based on a total weight of said composition.
 18. A metallic alloy composition, comprising: titanium in an amount of approximately 45.0 to 55.0 percent by weight based on a total weight of said composition; tungsten in an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition; nickel in an amount of approximately 10.0 to 20.0 percent by weight based on a total weight of said composition; chromium in an amount of approximately 0.5 to 5.0 percent by weight based on a total weight of said composition; molybdenum in an amount of approximately 0.5 to 15.0 percent by weight based on a total weight of said composition; a copper component in an amount of approximately 0.1 to 3.0 percent by weight based on a total weight of said composition; and a carbon component is an amount of approximately 5.0 to 10.0 percent by weight based on a total weight of said composition.
 19. A metallic alloy composition, comprising: titanium; tungsten; nickel; chromium; molybdenum; copper; and carbon; wherein said titanium is approximately 51.0 percent by weight based on a total weight of said composition; wherein said tungsten is in an amount of approximately 14.0 percent by weight based on a total weight of said composition; wherein said nickel is in an amount of approximately 15.0 percent by weight based on a total weight of said composition; wherein said chromium is in an amount of approximately 1.0 percent by weight based on a total weight of said composition; wherein said molybdenum is in an amount of approximately 10.0 percent by weight based on a total weight of said composition; wherein said copper is in an amount of approximately 2.0 percent by weight based on a total weight of said composition; and wherein said carbon is in an amount of approximately 7.0 percent by weight based on a total weight of said composition. 